t/ 
Spenceb F. Baird, 
SECRETARY, 
My dear Dr Gray; 
In acknowladgintJ the receipt of your letter of June 2d 
beg to say that your proposition to hold the plates of the 
Plora of North America for the present is hereby approved. 
Very truly yours i 
Seere tary . 
Dr Asa Gray, 
Cambridge, 
